Hello, @Niranj_369
Thanks for the post.
1. For S32G3, there are two versions existed, you may find it from your NXP account

2. But currently, the "Integration Reference Examples" is end of support, if you are willing to try the M7 bootloader, newer version projects are provided within the GoldVIP package, you may reference the GoldVIP for details.
BR
Chenyin